Steering wheel

Abstract

PURPOSE: To sense a steering force and its direction without being affected by inertial force by detecting the bending strain of a bending beam one end of which is fixed to a hub side while the other end to a spoke cover, by means of a strain gauge. CONSTITUTION: When steering, a ring cover 17 is relatively moved with respect to a steering wheel ring 14. Accompanying this, a spoke cover 16 is relatively moved with respect to spokes 12, 13. Thereby, a bending beam 15 one end of which is fixed to a hub 11 side while the other end being fixed to the spoke cover 16, is also bent in the relatively moving direction, and this bending strain is detected by a strain gauge 18, to sense steering force. This sensed steering force is converted into an electric signal, to control the variable throttle of the hydraulic circuit of a power steering. By this construction, steering force can be accurately detected without being substantially delayed, while without being affected by the inertial force of the steering wheel 14, securely preventing delay in steering of the power steering. COPYRIGHT: (C)1987,JPO&Japio

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Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    JP-S543735-AJanuary 12, 1979Aisin Seiki Co LtdSteering force detector

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Cited By (5)

    Publication numberPublication dateAssigneeTitle
    DE-102009057809-A1June 16, 2011Leopold Kostal Gmbh & Co. KgTorsion module for torque detection device of e.g. steering system of motor vehicle, has spring elements forming radially extending bending spokes that are integrally connected with each other by connecting sections
    DE-102011080552-A1February 07, 2013Robert Bosch GmbhLenkrad und Lenkmomentsensor für ein Kraftfahrzeug
    JP-H0272171-UJune 01, 1990
    US-7950690-B2May 31, 2011Leopold Kostal Gmbh & Co. KgSteering wheel for a motor vehicle
    WO-02076807-A1October 03, 2002Leopold Kostal Gmbh & Co. KgLenkrad für ein kraftfahrzeug